Re: [tor-bugs] #29859 [Applications/Tor Browser]: Playing videos on Twitter is not working and freezing the mobile browser

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#29859: Playing videos on Twitter is not working and freezing the mobile browser
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-mobile, GeorgKoppen201903,       |  Actual Points:
  TorBrowserTeam201903, tbb-8.5-must             |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by gk):

 Replying to [comment:8 sysrqb]:
 > Replying to [comment:7 gk]:
 > > Replying to [comment:6 sysrqb]:
 > > That said: I am not sure I understand your concerns regarding 1) (be
 it with or without 3) ). Are you concerned the exoplayer library is used
 for something other than HLS as well and we would therefore run into the
 same problems? Or that we just discover other hangs/freezes because we run
 into similar issues when trying to use a different media handler?
 >
 > My concern is the latter - that fennec tries handling the content with
 another handler. I don't know if this would happen, but when I skimmed the
 code it seems possible.

 Yes. The videos I tested play without HLS on my mobile device (while
 freezing the browser with HLS support). Given that we have blocked HLS for
 a while now and not heard much back about frozen browsers I guess there
 are fallbacks active that might kick in or it's not as widespread an issue
 one would assume. Either way I think we are better of if we disable HLS
 completely for now (and don't ship a broken version) until we can properly
 support it.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29859#comment:10>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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